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Low-carbon-emission modified asphalt

A technology of modified asphalt and carbon emission, which is applied in building components, building insulation materials, buildings, etc., and can solve problems such as carbon dioxide emission and insufficient road performance

Active Publication Date: 2021-11-05
SUZHOU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Practice has shown that warm mixing technology can reduce the temperature of asphalt paving to a certain extent (generally from 140-160°C to 120-140°C), thereby reducing carbon dioxide emissions, but asphalt still needs to be heated to a higher temperature, and there is still a lot of carbon dioxide Emissions; cold mix and cold laying technology is still insufficient in terms of road performance

Method used

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  • Low-carbon-emission modified asphalt
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  • Low-carbon-emission modified asphalt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] In 100 ml small beaker was weighed 10.05 g of asphalt 70, was added 0.025 g DOPO solid, placed in a thermostatic oven at 145 deg.] C, stirred for 15 min once, gradually decreases DOPO bulk solids, about every 2 hours completely disappeared, incubation was continued for 3 hours, then cool to give DOPO modified asphalt. Take a 25 ml small beaker, weighed DOPO modified asphalt 4.002g. The opening thermostat heating plate, a temperature of 200 ℃, while the carbon dioxide detector to open, to be constant heating plate 200 ℃ stable for 30 minutes, to a small beaker containing 25 ml of modified asphalt sample is placed in a thermostat heating plate, immediately with 10,000 ml beaker and covering the start timing system, the air in the hood continuously recording the carbon dioxide concentration, CO2 concentration values ​​as the sample is heated to produce carbon dioxide, i.e. carbon concentration. After testing 10 minutes, carbon concentration of 42ppm; 20 minutes, and carbon con...

Embodiment 2

[0016] In 100 ml small beaker was weighed 70 asphalt 10.02 g, was added 0.050 g DOPO solid, placed in a thermostatic oven at 145 deg.] C, stirred for 15 min once, gradually decreases DOPO bulk solids, about every 2 hours completely disappeared, incubation was continued for 3 hours, then cool to give DOPO modified asphalt. Take a 25 ml small beaker, weighed DOPO modified asphalt 4.006g. The opening thermostat heating plate, a temperature of 200 ℃, while the carbon dioxide detector to open, to be constant heating plate 200 ℃ stable for 30 minutes, to a small beaker containing 25 ml of modified asphalt sample is placed in a thermostat heating plate, immediately with 10,000 ml beaker and covering the start timing system, the air in the hood continuously recording the carbon dioxide concentration, CO2 concentration values ​​as the sample is heated to produce carbon dioxide, i.e. carbon concentration. After testing 10 minutes, carbon concentration of 29ppm; 20 minutes, and carbon concen...

Embodiment 3

[0018] In 100 ml small beaker was weighed 70 asphalt 10.04 g, was added 0.075 g of DOPO solid, placed in a thermostatic oven at 145 deg.] C, stirred for 15 min once, gradually decreases DOPO bulk solids, about every 2 hours completely disappeared, incubation was continued for 3 hours, then cool to give DOPO modified asphalt. Take a 25 ml small beaker, weighed DOPO modified asphalt 4.001g. The opening thermostat heating plate, a temperature of 200 ℃, while the carbon dioxide detector to open, to be constant heating plate 200 ℃ stabilize for 30 minutes, a small beaker containing 25 ml of modified asphalt sample is placed in a thermostat heating plate, immediately with 10,000 ml beaker and covering the start timing system, the air in the hood continuously recording the carbon dioxide concentration, CO2 concentration values ​​as the sample is heated to produce carbon dioxide, i.e. carbon concentration. After testing 10 minutes, carbon concentration of 20ppm; 20 minutes, and carbon con...

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Abstract

The invention relates to low-carbon-emission modified asphalt which is characterized in that 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) is adopted to modify matrix asphalt. The carbon dioxide emission of the modified asphalt after being heated can be greatly reduced, and the modification method is simple and high in practicability and has important application value.

Description

Technical field [0001] Technical Field The present invention relates to carbon emissions, in particular to a low-carbon modified asphalt. Background technique [0002] Carbon emissions, as the name suggests, is to reduce carbon dioxide emissions. With global warming, carbon dioxide emissions must be reduced in order to alleviate the human climate crisis. [0003] In September 2020, China has made solemn commitments to the world, will strive to achieve carbon peak in 2030, 2060 years ago to become carbon neutral. To achieve carbon emissions, we have to accelerate the development of recycling economy and promote comprehensive utilization of resources, promote clean production and green, on the other hand to speed up the development and application of energy saving technologies. [0004] In the road transport industry, asphalt pavement due to good driving comfort and excellent performance it has been widely used. Asphalt pavement construction, asphalt will emit large quantities of c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08K5/5313
CPCC08K5/5313C08L95/00
Inventor 袁福根袁杰灵朱雪华石鹏程沈菊男顾浩楠肖普元种祎玮邓明鸣
Owner SUZHOU UNIV OF SCI & TECH